dart

问题 Does anyone create a table with TableRowInkWell? I wanted a table with clickable row on the left and unclickable row on the right. Are there any example for creating a nice table? 回答1: You can only use TableRowInkWell inside the TableRow or TableCell for example: Table( border: TableBorder.all(), children: [ TableRow(children: [ ///Like this one******* TableRowInkWell( onTap: (){}, child: Column(children: [ Icon( Icons.account_box, size: iconSize, ), Text('My Account'), ]), ), Column(children

问题 I'm adding audio_service package for run audio in background. in android it works but author hasn't implement in iOS so getting below error when run app in iOS. Error: Launching lib/main.dart on iPhone 8 Plus in debug mode... Running pod install... CocoaPods' output: ↳ Preparing Analyzing dependencies Inspecting targets to integrate Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``) Finding Podfile changes A audio_service A audioplayer M Flutter - audio_player_service

问题 I'm adding audio_service package for run audio in background. in android it works but author hasn't implement in iOS so getting below error when run app in iOS. Error: Launching lib/main.dart on iPhone 8 Plus in debug mode... Running pod install... CocoaPods' output: ↳ Preparing Analyzing dependencies Inspecting targets to integrate Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``) Finding Podfile changes A audio_service A audioplayer M Flutter - audio_player_service

问题 I am trying to embed an image within a local HTML file. and trying to load that HTML file through a flutter review. the web page texts are showing but no locally referred images are showing. WebView class _HomeState extends State<Home> { WebViewController _webViewController; @override Widget build(BuildContext context) { return Container( color: Colors.orange, child: WebView( initialUrl: "", javascriptMode: JavascriptMode.unrestricted, onWebViewCreated: (controller){ _webViewController =

问题 In my code, I use a gesture detector to pull up my menu as the user is dragging. But when I pull the menu up, the hitbox of the GestureDetector doesn't change, so when I want to put it back down it only registers dragging on the initial hitbox, not the new one(where I transformed the widget to) I hope you can understand this^^ Here's the code: Stack(children: [ Column( children: <Widget>[ Expanded( child: TabBarView(children: <Widget>[ CostumCard( imgUrl: url, ), CostumCard( imgUrl: url, ), ]

问题 I'm getting the following error when starting my Flutter app: ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════ The following message was thrown: Could not navigate to initial route. The requested route name was: "/animals/cats/lolcats" The following routes were therefore attempted: * / * /animals * /animals/cats * /animals/cats/lolcats This resulted in the following objects: * MaterialPageRoute<dynamic>("/", animation: null) *

问题 I'm getting the following error when starting my Flutter app: ══╡ EXCEPTION CAUGHT BY FLUTTER FRAMEWORK ╞═════════════════════════════════════════════════════════ The following message was thrown: Could not navigate to initial route. The requested route name was: "/animals/cats/lolcats" The following routes were therefore attempted: * / * /animals * /animals/cats * /animals/cats/lolcats This resulted in the following objects: * MaterialPageRoute<dynamic>("/", animation: null) *

问题 var fruits = ['apples', 'oranges', 'bananas']; fruits[0]; // apples fruits.add('pears'); fruits.length == 4; fruits.where((f) => f.startsWith('a')).toList(); The example in the documentation shows the above. I dont really understand the documentation of the method either. https://api.dartlang.org/stable/1.21.1/dart-collection/IterableMixin/where.html I currently see a lambda function as a parameter inside where, with where having the argument f. What is f though? Im a bit confused. It would

问题 Because rapid change in app requirement from client, I have nearly 200 dart files, and many of them are unused. Is there any way for me to find unused classes except resorting to manually search one by one? In Android Studio, I can find java or kotlin classes which are unused by using "inspect code" feature. But I can't find any tools for the same purpose for dart / flutter. Thank you for your help in advance. 回答1: I'm not sure about unused classes per se. I know you can clean up unused

问题 According to Flutter's issue here , The Auto-Scroll to Index where each cell/item has dynamic height is currently not supported. I have tried another solution but no works. so, What's a temporary solution to make ListView with AutoScroll for dynamic height? Any Idea? 回答1: Your question so, What's a temporary solution to make ListView with AutoScroll for dynamic height? Screen Record solution scroll-to-index package This package provides the scroll to index mechanism for fixed/variable row